Sample & Hold Circuits

Sample & Hold Circuits are ICs (integrated circuits) that sample the voltage of ani input analog signal that is continuous and retain the value at a consistent level for an amount of time set by the user. This generation of the sample of the input signal is called sampling time

What are sample & hold circuits used for?

Sample & hold circuits are primarily used in linear systems to compare voltage generated via a DAC (digital-to-analog converter). The circuit tests values until the voltage is equal. Each value is then sampled and held utilising a sample clock.

Applications of sample & hold circuits

Most commonly in ADCs (analog-to-digital converters) to remove variations in the input signal. They are utilised in musical instruments such as synthesizers to impart effects on randomly to played notes.

Sample and hold circuits are also used in other applications such as;

  • Digital Voltmeters
  • Analog Signal Processing
  • Data Conversion Systems

...
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Description Price Acquisition Time Number of Sample and Holds Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 162-6170
Mfr. Part No.LF298M/NOPB
HK$20.664
Each (In a Tube of 55)
units
10µs 1 Dual - ±5 → ±18V Surface Mount SOIC 14 8.738 x 3.988 x 1.753mm 8.74mm 3.988mm 1.753mm +85 °C -25 °C
RS Stock No. 761-5422
Mfr. Part No.LF298M/NOPB
HK$22.57
Each
units
10µs 1 Dual - ±5 to ±18V Surface Mount SOIC 14 8.738 x 3.988 x 1.753mm 8.74mm 3.988mm 1.753mm +85 °C -25 °C
RS Stock No. 533-9224
Mfr. Part No.LF398AN/NOPB
HK$25.52
Each
units
25µs - Dual - ±15V Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 9.27mm 6.35mm 3.3mm +70 °C 0 °C
RS Stock No. 197-7187
Mfr. Part No.LF398N/NOPB
HK$15.634
Each (In a Pack of 5)
units
10µs 1 Single - ±15V - PDIP 8 - - - - - -
RS Stock No. 121-8991
Mfr. Part No.LF398M/NOPB
HK$13.483
Each (In a Tube of 55)
units
20µs - Dual - ±15V Surface Mount SOIC 14 8.64 x 3.91 x 1.45mm 8.64mm 3.91mm 1.45mm +70 °C 0 °C
RS Stock No. 121-8735
Mfr. Part No.LF398AN/NOPB
HK$20.095
Each (In a Tube of 40)
units
25µs - Dual - ±15V Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 9.27mm 6.35mm 3.3mm +70 °C 0 °C
RS Stock No. 197-7186
Mfr. Part No.LF398N/NOPB
HK$13.388
Each (In a Tube of 40)
units
10µs 1 Single - ±15V - PDIP 8 - - - - - -
RS Stock No. 647-9806
Mfr. Part No.LF398M/NOPB
HK$15.954
Each (In a Pack of 5)
units
20µs - Dual - ±15V Surface Mount SOIC 14 8.64 x 3.91 x 1.45mm 8.64mm 3.91mm 1.45mm +70 °C 0 °C